Caffeine Half-Life Tracker Live

Name: Caffeine Half-Life Tracker
Author: JAMGSOFT

JAMGSOFT2 apps · 20 installsProductivityFreecom.halflifecaffeine.tracker

Know exactly when caffeine leaves your body. Sleep better tonight

Alert me ★ Watch Open in Play ↗

Total installs: 13
Installs / day: —
Rating: —★
Released: 19 May 2026
Last update: 20 May 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Permissions

12 in 3 groups

5 Sensitive2 Notable5 Routine

What this app can do with your phone

Read photos, videos, and other files saved in your phone's shared storage
Add, change or delete photos, videos and other files in your phone's storage
Show its own windows or bubbles on top of other apps you are using

Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

StorageSensitive2

Access to files, photos and media saved on your phone's storage

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

OtherSensitive8

Access to miscellaneous device features that don't fit other categories

Show its own windows or bubbles on top of other apps you are usingdraw over other apps · SYSTEM_ALERT_WINDOW
Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Make your phone vibratecontrol vibration · VIBRATE
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE
Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

Ever wonder why you can't fall asleep even though you had your last coffee "hours ago"? Caffeine doesn't just disappear — it takes roughly 5 hours for your body to eliminate just half of it. Caffeine Half-Life Tracker shows you exactly how much caffeine is still active in your system right now, and precisely when it will drop low enough for quality sleep. How it works Log your drinks as you go — coffee, tea, energy drinks, or anything custom. The app uses your body's caffeine half-life (approximately 5 hours) to calculate a real-time decay curve and tells you when you'll be in the clear. Features • One-tap logging for espresso, drip coffee, lattes, green tea, black tea, Red Bull, Monster, Diet Coke, and more • Real-time mg counter with color-coded status (red → green as caffeine clears) • Decay graph showing your caffeine curve over the next 12 hours • Sleep-ready countdown — know exactly when it's safe to wind down • Custom drink support — add any drink with your own mg amount • Sleep reminder notification when your caffeine drops below your personal threshold • Adjustable half-life (3–7h) to match your own metabolism • Fully offline. No account. No ads. No tracking. Who it's for Coffee lovers who want to time their last cup smarter. People who struggle with sleep but haven't connected it to caffeine. Anyone who's ever had a 2 AM heart race and wondered why. Stop guessing. Start sleeping.

What's new

Welcome to Caffeine — your body's caffeine clock. - Log coffee, tea & energy drinks in one tap - See exactly how much caffeine is active right now - Decay graph for the next 12 hours - Sleep-ready countdown so you know when to wind down - Custom drinks & adjustable half-life No account. No ads. Fully offline.

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